Finding the Fourth Proportional to 1,721.32, 2,375.53 and 1,162.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.32 : 2,375.53 = 1,162.89 : x
2. Step 2: Convert to fraction form
   1,721.32/2,375.53 = 1,162.89/x
3. Step 3: Cross multiply
   1,721.32x = 2,375.53 × 1,162.89
4. Step 4: Simplify right side
   1,721.32x = 2,762,477.17
5. Step 5: Solve for x
   x = 2,762,477.17/1,721.32
6. Step 6: Final answer
   x = 1,604.86